If your code used one of the following, it will break:

new BotBuddy(...)
new BotBuddy.Builder(...)
new BotBuddy.Stash(Stash)
new BotBuddyCode(...)

Instead, you should use:

BotBuddy.builder().build()
BotBuddy#dup()
BotBuddy.Stash#dup()
BotBuddyCode.builder().build()

The other methods were either removed or made protected so that there would be less init methods to maintain (and therefore less bugs).